Ebwest winne



E. WINNE.

FOUNTAIN PEN.

APPLICATION HLEI) MAY 29, 1915.

1,1 95,125. Patented Aug. 15, 1910.

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.of a longitudinal bag of rubber.

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FOUNTAIN-PEN.

To all whom it may concern: I

Be it known that I, ERNEs'r WINNE, a citizen of the United States, anda'resident of New York city, borough of Manhattan, in the county of NewYork and State of New York, have invented certain new and usefulImprovements in Fountain-Pens, of which the following isa specification.

This invention relates'to certain new and useful improvements infountain pens, and particularly to that class of fountain pens which areprovided with an automatic filling device composed of a compressiblereservoir and means for excluding the air from the reservoir so as topermit the ink to The object of my invention is to provide a new andimproved pen of this kind which is simple in construction, can bemanipulated with the least expenditure of time and effort, and whichdoes not require'the detaching or preliminary shifting of any partswhatever, nor the use of any other 1nstrument thah the fingers directlyapplied; which does not have any parts projecting from the side of thebarrel to interfere with the convenier t holding of the pen when in use,or detract from its graceful appearance; and in the operation of whichthere is no tendency to force the pen toward the bottom of the ink well;and which improvement is strong and durable, and operates rapidly.

In the accompanying drawings in whichlike letters of reference indicatelike parts in all the figures :,Figure 1 is a longitudinal section of myimproved self-filling foun tain pen. F ig. 2 is an enlarged detaillongitudinal sectional View of the upper end of the barrel, the plunger,and the means for moving the same. Fig. 3 is a transverse section on theline a-a of Fig. 2. Fig. 4 isa transverse section on the line b-b ofFig. 2. Fig. 5 is a transverse section on theline cc of Fig. 2. Fig. 6is a perspective view of the sleeve cam, parts being broken away.

The pen barrel 1 contains a compressible ink reservoir 2 whichpreferably consists This bag can be compressed so as to force out theair by means of a strip 3, which is secured to a spring strip 4 placedin the barrel along side of the reservoir, both of which extendlongitudinally of the reservoir. This spring strip 4 or flexible stripat its lower end rests against the front plug,the part contalningSpecification of Letters Patent. Patented Aug. 15, 11916.. Applicationfiled May 29, 1915. Serial No. 31,146. v

move longitudinally.v When the compressible reservoir is filled anddistended by the ink in the same, the strip 4 is straightened out andrests against the wall of the barrel. When the plunger 5 is moved inwardlongitudinally, the spring strip 4 is bent at its center and presses thestrip '3 against the ink reservoir, thereby flattening or compressingthe reservoir and forcing out the ink or air so that when the pressureon the plunger 5 is removed the distending reservoir can flatten out thespring. strip 4. What have described so far I do not claim 'as myinvention.

In my invention the plungen 5 is guided to move lengthwise of thebarrel, and also is prevented from turning, by means of a pin orother'pr'ojection 8 extending from each of two opposite sides of thesame, beyond the partition 7, through two opposite longitudinal slots 9formed inthe neck 10 of the barrel beyond the partition 7. A sleeve 11fitting on the cylindrical partition 7 and neck 10, and preferablyhaving its outer surface provided with longitudinal riflies,or roughenedin any other way that will facilitate its being firmly grasped with thefingers,fits snugly but capable of easy-turning on the "partition andneck; and on the inside of this sleeve 11, bearing directly on the neck,a metal sleeve or bushing 12 is firmly inserted, which has its inneredge shaped as a cam edge, which cam edge bears upon the ends of theprojections 8, which projections extend to the inner diameter of thesleeve 11 at that part not provided with cam sleeve 12. The cam sleeveis thus mounted to rotate on the neck by manipulation of the sleeve 11of which it is a fixed part. To prevent the sleeve 11 and its cam sleevebushing 12 from moving longitudinally a sleeve 13 is slipped upon theneck 10 and rests against the outer ends of the sleeves 11 and 12, thusholding the opposite end of the sleeve 11 against the shoulder at theend of the main portion of the -barrel. The sleeve 13 has twodiametrically opposite longitudinal ridges 14 which pass into thegrooves 9 and thus prevent the sleeve 13 from revolving. The outer edgeof the sleeve 13 is flush with the extreme outer edge of the pen barrel,which is the outer end of the slotted neck. To prevent the sleeve 13from moving longitudinally an end plate 15 is secured on the end of thebarrel to overlap the outer edges of the sleeve 13, and this end pieceis preferably held in place by providing it with a threaded stem 16which can be screwed into the outer end of the neck 10, which isinternally screw threaded for the purpose of receiving this screw.

The sleeve 11 can be turned on the neck in either direction, but cannotmove longitudinally, as it is confined by the sleeve 13, which cannotturn on account of its internal ribs or splines 14, and cannot movelengthwise on -the inner end of the inserted metal sleeve 12,

which is secured on the sleeve 11, act on the projections 8 and pressthe plunger 6 lengthwise of the barrel in the direction of thepenholding end of the same, thereby upsetting the spring strip 4:,whereby the strip 3 which is attached to the middle of the spring 4exerts .a uniform pressure on the side of the compressible reservoir 2,thus expelling the ink and air therefrom, but as soon as the point ofthe cam edge 19 has passed the projections 8 the inrushing ink distendsthe reservoir 2, flattens out the spring strip 4, and pushes the plunger5 outward again. Hence it is only necessary to give the sleeve 11 anaxial movement in either direction of onequarter of a revolution, itbeing understood that there are four cam'projections 19 on the sleeve12. In so turning the cam sleeve, when the points of the cam pass theprojections 8 the latter return with a snapping movement into the bottomof the notches between the cam points, and this single pres sure andrelease movement of the cam sleeve is sufficient to expel the air fromthe reser voir and to permit the reservoir to be filled with ink afterit has thus been compressed and permitted to expand. The cam sleeve 12can be turned in either direction as the cam edges 19 incline at anequal angle in both directions. Therefore, to fill the pen, all that isnecessary is to dip the pen point into the ink and to grasp the barrelfirmly between the pen point and the sleeve 11 and then turn said sleevein either direction a quarter revolution, or until the mechanismcompressing said reservoir, comprising a V plunger, gu1ded to movelengthwise, means for holding the plunger against rotary movement, arotary sleeve provided with in ternal cams to act on said plunger andmeans secured on the barrel adjacent to the cam sleeve, to preventlongitudinal movement of the latter, substantially as set forth.

2. In an automatically filling fountain pen, the combination with abarrel and compressible reservoir in the same, of means for compressingthe reservoir comprising a plunger guided to move lengthwise, a sleeveprovided with internal cams to act on the plunger, a sleeve abutting thecam sleeve to prevent longitudinal movement of the latter.

and means for preventing said last mentioned sleeve from turning and.means for preventing said sleeve from'moving longitudinally,substantially as set forth.

3. In an automatically filling fountain pen, the combination with abarrel and compressible reservoir in the same, of means for compressingthe reservoir comprising a plunger guided to move lengthwise, a sleeveprovided with internal cams to act on the snaps back into its normalposition; or, with plunger, a sleeve resting against'the outer end ofthe cam sleeve to prevent the latter from moving longitudinally, meansfor preventing said sleeve from turning and an end piece to prevent saidsleeve from moving longitudinally, which end piece has a screw stem,screwed into the outer end of the barrel, substantially as set forth.

4:. In an automatically filling fountain pen, the combination with abarrel and a compressible ink reservoir in the same, of means forcompressing the reservoir comprising a plunger guided to movelongitudinally, two opposite projections laterally extending from saidplunger, the barrel havinglongitudinal grooves in which said projectionscan slide, a cam sleeve provided with internal cams to bear against saidprojections, and means for preventing the cam sleeve from movinglengthwise, substantially as set forth.

5. In an automatically filling fountain ing against the saidprojections, and means i for preventing the sle'evein which the cam' isprovided from moving lengthwise, substantially as set forth.

6. In an automatically filling fountain pen, the combination with abarrel and a compressible ink reservoir in the same, of means forcompressing the reservoir comprising a plunger. guided to movelengthwise and having two opposite laterally extendin projections, thebarrel terminating in a nec which isslotted lengthwise, through' whichslots the ends of the projections on the pluns' ger extend, a cam sleeveon said neck provided with lnternal cams bearlng on said projections, asleeve resting against the outer end of the cam sleeve and havinginternal projections which enter the slots in the neck, and means forpreventing said last named sleeve from [moving lengthwise,

substantially as set forth.

7. In an automatically fountain pen, the combination with a barrel andacompressible ink reservoir in the same, of

means for compressingthe reservoir. comprising a plunger guided to movelengthwise and having two opposite laterally extending projections, thebarrel terminating in a neck which is slotted lengthwise, through whichslots the ends of the lateral projections on the plunger extend, a camsleeve on said neck provided with internal cams bearing on saidprojections, a sleeve resting against the outer end of the cam sleeveand having internal projections which enter the slots in the neck, anend plate resting against the last mentioned sleeve, a threaded stemprojecting from said plate, which threaded stem is screwed into the endof the barrel,

substantially as set forth.

8. In an automatic filling fountain pen, the combination with a barrel,a compressible reseryoir therein, ofv means for comv pressing thereservoir, comprising aplunger guided to move lengthwise, means forpreventing rotary movement of the plunger, a loosely mounted sleevewhich v can be rotated in opposite directions, cam edges in said sleeveto act on said plunger to move it lengthwise in the same direction whenthe sleeve is rotated in either direction and means to preventlongitudinal movement of the camsleeve, substantially as set forth.

9. In an automaticffilling fountain pen,

the combination with a barrel, of a compressible reservoir therein,means for com ger guided to move lengthwlse and a s eeve on the barrelwhich is mounted to rotate in opposite directions, means for preventingrotary movement of the plunger, the lunger be ng operable by the sleevewit the same effect when the same is turned in either direction,substantially as set forth.

Signed at. New York city, borough of Manhattan, in the county of NewYork and State of New York this 11th day of March,

v v ERNEST WINNE. Witnesses:

M. SHAW, PAUL H. FRANKE.

"pressing-the reservoir comprising a 'lun-

